Vehicle lifter



Sept. 29, 1925. I1,555,637

- F. DAVIS VEHICLE LIF'TER Film1 Jan. l2. 1925 6 7 la 2 A'ronnev Patented Sept. 29, 1925.

UNITED .STATES 1,555,537 PATENT OFFICE.

` 'FRANK Davis, or'sAN Jose, cALiroRNIn.,

` VEHICLE LIFTER.

ApplicationledJanuary 12, 1925. Serial No. 1,913.

To all whom t may 00m-cern:

Be it known `that I, FRANK Davis, a citizen of the UnitedStates, and a resident of San Jose, in the county of Santa Clara and AState of California, have invented certain lnew and useful Improvements in Vehicle Lifters, ofk which the following is a specification.

It is the object of the present invention to provide a simple and efficient mechanism for lifting a vehicle, such as an automobile, a distance from the ground whereby the under portions are rendered easy of access, Aand at the same time Araising the vehicle Vrelative to the lifting mechanism whereby to space the wheels a distance from the supporting track, thereby removing the weight of the vehicle fromthe wheel tires and consequently prolonging the life of the same.

In the drawing Figure 1 i-s a plan` View of the machine with the vehicle raising parts lowered to the ground. i Figure 2iisa section on 22 of Figure 1 with the vehicle raising part-s elevated.

\ Figure 8 is an enlarged detail section on line 3#3 of Figure 1.

Figure 4 is a plan view of the part shown in Figure 3.

Referring more particularly to the drawing, I show at 1-1 a pair of spaced parallel base members tied by cross bars 2-22. On the twoend bars 2-2 are positioned supports 3, and in supports 3 are two transversely arranged bars 1 -4.

Pivotally mounted on .each bar 4: and equally spaced from the center thereof, are struts 5-5 joined at their outer ends by a rod 6 to which they are pivotally connected. Rigidly mounted upon the inner side of each strut is an arm 7, spaced a distance therefrom and in parallel relation thereto. These arms are mounted on struts 5--5 as at 8 8 between rod 6 and bar 4 and are pivotally mounted on rod 6 and extend a distance therebeyond. Pivotally mounted upon the end of each arm 7 is a link 9 which is in turn rigidly connected to a bar 10, a bar l being supported by each side pair of links 9.

Pivotally mounted upon both rods 6-6 as at 11 and directly over each pair of side struts -5 are track members 12-12. Since each track is mounted upon two struts of equal length and pivotally mounted in the same base member 1 to describe equal parallel arcs, it follows that any upward movement of said struts willraise the track above the base member but constantly maintain it in parallel relation to said base member.

'It also` follows that since each bar 1() is mounted upon the extensions carried by the struts 5-5 they will be raised simultaneously with the tracks and in parallel Irelation thereto.y However, due to the extensions 7 and links 9 the vertical distance between tracks12-12 and bars 10u10 gradually increases as these parts are raised, so that when the vehicle israisedsuiiciently high to permit access to its under parts the bars have engaged the axles 13 of the vehicle, or other parts of the vehicle chassis, and elevated it sufficiently to raise the wheelslli off of tracks 12.

There being four struts 5` arranged in pairs to raise track members 12 andb-ars 10, it is necessary that suitable means be provided for simultaneously raising or lowering all of said struts. This I accomplish by means of. standards 15-15f1515 mounted onbase 1 as shown and carrying pulleys 16. On the inner side of each base member 1is also mounted a pulley as 17. At one end of the 4structure a shaft 18 is mounted carrying pulleys 19. A cable is connected to each end of one rod 6 and carried over the adjacent pulley 16,V thence downwardly under the pulley 17 on the adjacent base member 1, and thence to a pulley 19 to which it is secured. A cable 21 isconnected to each end of the other rod 6 and carried over the adjacent pulley 16 and thence directly to a pulley 19 to which it is secured. Obviously when the shaft 18 is rotated in one direction it will wind up the cables and raise the tracks 12 and bars 10 as heretofore described, and when rotated in the opposite direction these parts will be allowed to lower.

Any suitablemeans may be used for operating shaft 18 such asa gear and pinion 22 operated by a shaft 23, worm gear 211 and pulley 25.

A vehicle having been run upon tracks 12--12 and elevated as above described, the elevated parts may be securely locked in position by means of chains 26 mounted on the standards 15 and provided with hooks 27 to engage rods 6.

The links 9 will, of course, support the bars 10 over track 12 when the structure is collapsed, with struts 5 and arms 7 lying parallel with the track as shown clearly in Figure 3.

It is to be understood, of course, that while` I have herein shown and described one speciiic embodiment of the invention, changes in form, construction and methodv oi' operation may be made within the scope of the appended claims.

I claim l. The combination with a vehicle supporting track and means for elevating the same, of vehicle chassis engaging bars carried by said elevating means and movable therewith, and means for proportionally increasing the spacing of said track and bars as said track is elevated..

2. The combination with al vehicle supporting trackand means for elevating the same, of vehicle chassis engaging bars, and supporting means inserted between said bars and elevating means whereby said bars are elevated relative to said track.

3. The combination with a. vehicle supporting trac-k and means for elevating the same, of bars positioned over the track and parallel therewith and adapted toengage the fro-nt and rear vehicle axles, arms carried by said elevating means and yextending beyond said track when elevated, and pivotal connections between said bars and arms.

4. The combination with a vehicle supporting track and means for elevating the same, of bars positioned over the track and parallel therewith and adapted to engage the front and rear vehicle axles, arms carried by said elevating means and extending beyond said track when elevated, and links same, of vehicle chassis engaging members arranged above said track and parallel therewith, and means operable by said track elevating means for simultaneously elevating said members an'd maintaining them in par. allel relation to said track.

6. In combination, a base, struts pivotally mounted thereon, and means for rotating the same about their pivots, para-Helly -arranged track elements pivotally mounted on said struts whereby to'be elevated thereby, arms rigidly mounted on said struts and projecting beyond the ends thereof, and bars pivotally mounted on said projecting arms and parallelly arranged relative to said track members and to each other.

7. The combination with a vehicle supporting track and means for elevating the same, of vehicle chassis engaging bars `carried by said elevating means and movable theremth, and means for proportionally increasing the spacing of said track and bars as said track is elevated, and means for locking said bars and track in elevated and spaced relation to each other.v

8. The combination with a. vehicle supporting track and vmeans for elevating the same, of vehicle chassis engaging members movably mounted relative to said track,and means operable by said track elevating means for elevating said members relative to said track wherebyy to engage a vehicle chassis mounted on said trac FRANK DAVIS. 

